Require time for change in the ratings (5,2,5)

I believe the answer is:

order of merit

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'in the ratings' is the definition.
I can't judge whether this defines the answer.

'require time for change' is the wordplay.
'require' becomes 'order' (I can't justify this - if you can you should believe this answer much more).
'change' indicates an anagram.
'time'+'for'='timefor'
'timefor' with letters rearranged gives 'ofmerit'.
'order'+'ofmerit'='ORDER OF MERIT'

Can you help me to learn more?

(Other definitions for order of merit that I've seen before include "First, second, third" , "Valuable instruction" , "(Award for) people of distinction" , "OM, in full" , "Chivalrous group" .)

I've seen this clue in The Globe and Mail.

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